 /*******************************************************************************
  * Copyright (c) 2006 IBM Corporation and others.
  * All rights reserved. This program and the accompanying materials
  * are made available under the terms of the Eclipse Public License v1.0
  * which accompanies this distribution, and is available at
  * http://www.eclipse.org/legal/epl-v10.html
  *
  * Contributors:
  * IBM Corporation - initial API and implementation
  ******************************************************************************/

 package org.eclipse.ui.ide.fileSystem;

 import java.net.URI ;

 import org.eclipse.core.filesystem.URIUtil;
 import org.eclipse.swt.widgets.Shell;

 /**
  * The abstract base class for all UI file system contributors. This class
  * provides the infrastructure for defining a contributor and fulfills the contract
  * specified by the <code>org.eclipse.ui.ide.filesystemSupport</code>
  * extension point.
  *
  * @since 3.2
  * @see org.eclipse.core.filesystem.IFileSystem
  */
 public abstract class FileSystemContributor {
     
     /**
      * Browse the file system for a URI to display to the user.
      * @param initialPath The path to initialize the selection with.
      * @param shell The shell to parent any required dialogs from
      * @return URI if the file system is browsed successfully or
      * <code>null</code> if a URI could not be determined.
      */
     public abstract URI browseFileSystem(String initialPath, Shell shell);
     
     /**
      * Return a URI for the supplied String from the user.
      * @param string
      * @return URI or <code>null</code> if the string is
      * invalid.
      */
     public URI getURI(String string){
         return URIUtil.toURI(string);
     }

 }

